1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

HF and VHF aerials location

Discussion in 'Camping & Outdoor Gear' started by andrea-PE-ITALY, Aug 26, 2006.

  1. andrea-PE-ITALY

    andrea-PE-ITALY

    Messages:
    120
    Likes Received:
    0
    Joined:
    Aug 14, 2006
    On your 80 series where located are the antennas for HF and VHF ? what is the most popular aerials brend you use? in HF (1,8-30 Mhz) how many distance did you made in a QSO? Have you never made radio connections over your country? i ask it because from italy the nearly desert is sahara.. i will try to talk from sahara to italy next november using HF
     
  2. waaz

    waaz

    Messages:
    77
    Likes Received:
    0
    Joined:
    Dec 20, 2004
    Location:
    Kelowna B.C.
    Hello
    Have never been HF mobile, but have talked to many and find the electric screwdridrive antenna works good, and also the hustler antenna with the right
    resenator works good to
    Find most mount antenna off of rear trailer hitch with spring ball
    VHF is good mounted on roof or front fender
    Hope that helps
    73
    VA7GS
     
  3. dfmorse

    dfmorse

    Messages:
    1,518
    Likes Received:
    2
    Joined:
    Jul 7, 2004
    Location:
    EVERGREEN, CO, USA
    Andrea;

    When I got my rig put together, my first QSO was Saudi Arabia on 12 meters. I would think that 20 meters would get u into Italy from the Sahara; if the bands are working.

    Here are some pictures of my installation:

    http://homepage.mac.com/dfmorse/RigProj/page16.html

    David in Denver, CO, USA
    k0dar
     
  4. aim

    aim

    Messages:
    471
    Likes Received:
    8
    Joined:
    Dec 22, 2004
    Location:
    Western MA
    My 10m/6m/2m antenna is on the hood lip, driver side, half way back. Considering that I often carry odd stuff on the roof and use the hatch a lot, this was probably the best choice. It's great on 2m/440; 10m is still ok.
     
  5. andrea-PE-ITALY

    andrea-PE-ITALY

    Messages:
    120
    Likes Received:
    0
    Joined:
    Aug 14, 2006
    your reply are very interesting, i just gave a look to the linked sites. Have you some project about your aerials? Have you never tried to use a vertical dipole by using ballons whit helium inside? is it strange?? do you think is it possible?
    Thanks for your reply again.
     
  6. CDN_Cruiser

    CDN_Cruiser

    Messages:
    1,047
    Likes Received:
    1
    Joined:
    Mar 27, 2003
    I have a dual band 2M/70CM mounted to mt roof rack (drivers side rear) and an electronic screwdriver (ATAS-120) on the rear hatch (passenger side).

    I seem to be able to "hear" (RX) quite well (e.g., lots of 20M activity from west coast of north america, and was monitoring a NZ based contest station based in a lighthouse outside of Aukland from the east cost of NA).

    That being said, I'm not sure that I can be heard at this point!

    Cheers, Hugh
     
  7. andrea-PE-ITALY

    andrea-PE-ITALY

    Messages:
    120
    Likes Received:
    0
    Joined:
    Aug 14, 2006
    i think for 2m and 70 cm there are no problem about irradiation. but for HF i think might to be. What do you think about rf signals and Airbags. could be dangerous ?
     
  8. offroad_nomad

    offroad_nomad

    Messages:
    104
    Likes Received:
    0
    Joined:
    Jul 12, 2005
    Location:
    Fairfax, VA
    Regarding 2m VHF antennas location, it seems most Americans prefer to mount the antennas up on the roof citing ground plan issues. However, whenever I get my issue of the Aussie 4WD Monthly magazine, it seems like most 4x4s have the antennas mounted to their front bull bars.

    Is one location really better then the other?

    Thanks.
     
  9. 1990 LJ78

    1990 LJ78

    Messages:
    451
    Likes Received:
    0
    Joined:
    May 3, 2006
    Location:
    Ontario
    I would say the bigger the ground plain you have under you antenna the better.
    I think the bull bar mounts are ok But do not provide that nice large flat surface for a ground plain that your roof dose. The large flat surface of your roof acting as a ground plain will allow your antenna to radiate much better than the bull bar.

    Just my opinion.
     
  10. andrea-PE-ITALY

    andrea-PE-ITALY

    Messages:
    120
    Likes Received:
    0
    Joined:
    Aug 14, 2006
    1990LJ78 is right. an isotropic antenna like a stilo sends more RF in the same direction the ground plane is larger. in some cases the ground plane make an isotropic antenna like a directive vertical antenna. for 2m and 70cm no problem about large ground plane but for HF i think it's more difficult.
     
  11. andrea-PE-ITALY

    andrea-PE-ITALY

    Messages:
    120
    Likes Received:
    0
    Joined:
    Aug 14, 2006
    dfmorse, have you some project about your hf aerials? i think i will find it on ARRL handbook :)
     
data-matched-content-rows-num="2,1" data-matched-content-columns-num="1,4" data-matched-content-ui-type="image_stacked" data-ad-format="autorelaxed">